Washington announces its position on attacks inside Russia

Aftermath of the attack on one of the apartment buildings in Moscow. (EPA)

The United States said on Tuesday it did not support attacks inside Russia following drone strikes on tall buildings in Moscow, but said Russia bore responsibility for the war with Ukraine.

A State Department spokesman said: "In general, we do not support attacks inside Russia. We are focused on providing Ukraine with the equipment and training it needs to regain sovereignty over its territory."

The spokesman's comments came as US Secretary of State Antony Blinken visited Sweden.